.nav{
    position: fixed;
    bottom: 0;
    width: 100%;
    background-color: #fff;
    z-index: 99999999999;
    .list{
      display: flex;
      align-items: center;
      
      .item{
        width: 25%;
        height: 60px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        img{
          width: 22px;
          height: 22px;
        }
        span{
          font-size: 12px;
          color: #333;
          margin-top: 5px;
        }
        &.art{
            span{
                color: #0F4D12;
            }
        }
      }
    }
  }
